Specifications include, but are not limited to:
A. The CMT Consultant will be a prime entity contracting directly with the Port
of Houston Authority and may sub-contract a portion of the testing services
to other qualified consultants as part of its team to support the project
requirements. The CMT Consultant and any sub-consultant laboratories
shall be accredited by the American Association for Laboratory
Accreditation (A2LA) to perform the testing pertinent to the project
referenced above. The CMT Consultant and all sub-consultants will use
experienced technicians who are certified by an appropriate agency to
perform all required field and laboratory tests.
B. The CMT Consultant shall establish and enforce quality control policies to
ensure the effectiveness and representativeness of the testing program.
C. The CMT Consultant shall perform and document calibration of all testing
equipment and maintain laboratory facilities used for storage, preparation
and curing of samples and test specimens, and testing in conformance with
standards required for accredited operation.
D. Review the Contractor’s submittals on source materials and mix designs for
Portland cement concrete for compliance with specifications.
E. Perform straightedge testing of finished base surfaces as required.
F. Perform required conformance testing according to the specifications or as
otherwise directed by Port Authority construction managers and inspectors.
Conformance testing will vary depending on the components of construction
but may include the following:
1. Properties of constituent materials for Portland cement concrete,
including gradation, alkalinity, hardness and durability of aggregates.
2. Properties of placed concrete, including slump, air content, and
3. Gradation, plasticity, and compaction characteristics of natural and
stabilized soils and rock.
4. Strength and elongation of reinforcing steel.
5. Other tests and observations associated with heavy construction.
G. The CMT Consultant will perform the laboratory tests and oversee the use
of the resulting moisture-density relationships (Proctor curves) for soils to
be compacted under pavements.